you were just 9 months old then but already started copying and imitating. The stopper for the main door, I am not sure how many times you looked at others pulling it down with leg.But one fine day, you are there at the main door, holding on to the door and pulling it down with the leg. hahahahhaahahahahahahaahha..I was Wondering on how do you to use only leg and not hand. but thats how you did....